James Webb Space Telescope
The James Webb Space Telescope (JWST) is a large, infrared-optimized space telescope launched on 25 December 2021. It is a joint project between NASA, the European Space Agency (ESA), and the Canadian Space Agency (CSA). The primary scientific objectives of the JWST include studying the early universe, galaxy formation and evolution, and the formation of stars and planetary systems. The telescope is also used to study the atmospheres of exoplanets to search for signs of life. The JWST is positioned at the second Lagrange point (L2) of the Earth-Sun system, located about 1.5 million km (930,000 mi) away from Earth, and uses a 6.5-meter primary mirror to collect and focus infrared light from the most distant objects in the universe.
James Webb Space Telescope is currently in the constellation of Sagittarius. The current Right Ascension of James Webb Space Telescope is 18h 23m 55s and the Declination is -34° 59’ 36” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom ).
Today's rise, transit and set times of James Webb Space Telescope from Greenwich, United Kingdom (all times relative to the local timezone Europe/London):
- James Webb Space Telescope is above the horizon from Greenwich, United Kingdom .
- Right now it is placed in the South direction at an altitude of 3° above the horizon.
- Go to interactive sky chart
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James Webb Space Telescope Position and Finder Charts
Below we provide James Webb Space Telescope finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.
Field of view: 50x30 degrees
Field of view: 10x6 degrees
Higher precision deep sky finder chart, 60 arcmin wide, showing where James Webb Space Telescope is right now. Click on the image to see a more detailed fullscreen tracker view.
RA: 18h 23m 55s
Dec: -34° 59’ 36”
Field of view: 60x40 arcmins
Also check out Where is James Webb Space Telescope?, a page that provides all the information needed to find James Webb Space Telescope in the sky and additional links to sky charts.
James Webb Space Telescope Distance from Earth
The distance of James Webb Space Telescope from Earth is currently 1,721,154 kilometers, equivalent to 0.011505 Astronomical Units. Light takes 5.7412 seconds to travel from James Webb Space Telescope and arrive to us.
The following chart shows the distance of James Webb Space Telescope from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.
The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of James Webb Space Telescope from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach of James Webb Space Telescope to Earth
Between 26 December 2021 and 5 March 2025, the closest approach of James Webb Space Telescope to Earth happens on Sun Dec 26 2021 at a distance of 0.000894 Astronomical Units, or 133,698 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Visualization of James Webb Space Telescope Orbit
This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of James Webb Space Telescope with respect of the Sun and the orbits of the major planets. The position of James Webb Space Telescope and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!
James Webb Space Telescope 15 Days Ephemeris
The following table lists the ephemerides of James Webb Space Telescope computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate James Webb Space Telescope in our Online Planetarium at the chosen date.
|2023 Jun 03||18h 12m 30s||-32° 39’ 48”||N.A.||Sagittarius|
|2023 Jun 04||18h 14m 21s||-32° 59’ 24”||N.A.||Sagittarius|
|2023 Jun 05||18h 16m 08s||-33° 18’ 25”||N.A.||Sagittarius|
|2023 Jun 06||18h 17m 50s||-33° 36’ 56”||N.A.||Sagittarius|
|2023 Jun 07||18h 19m 29s||-33° 54’ 56”||N.A.||Sagittarius|
|2023 Jun 08||18h 21m 03s||-34° 12’ 24”||N.A.||Sagittarius|
|2023 Jun 09||18h 22m 32s||-34° 29’ 21”||N.A.||Sagittarius|
|2023 Jun 10||18h 23m 56s||-34° 45’ 46”||N.A.||Sagittarius|
|2023 Jun 11||18h 25m 14s||-35° 01’ 37”||N.A.||Sagittarius|
|2023 Jun 12||18h 26m 26s||-35° 16’ 58”||N.A.||Sagittarius|
|2023 Jun 13||18h 27m 33s||-35° 31’ 42”||N.A.||Sagittarius|
|2023 Jun 14||18h 28m 32s||-35° 45’ 52”||N.A.||Sagittarius|
|2023 Jun 15||18h 29m 29s||-35° 59’ 26”||N.A.||Sagittarius|
|2023 Jun 16||18h 30m 20s||-36° 12’ 20”||N.A.||Sagittarius|